Leather coating composition and preparation method thereof

A technology of leather coatings and compositions, which is applied in lignin coatings, leather surface treatment, antifouling/underwater coatings, etc., can solve the problems of environmental protection, poor embossing and setting, and complicated operations, so as to reduce production costs and improve production efficiency. Adhesive force, easy operation effect

Active Publication Date: 2014-04-09
高峰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing leather coatings that are directly used for the second layer of leather and the first layer of poor leather are divided into two categories: ① wet-process products, wet-process products have good film formation, good air permeability, resistance to twists and turns, and good shaping, but solvent-based products Large, not environmentally friendly, and this type of produ

Method used

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  • Leather coating composition and preparation method thereof
  • Leather coating composition and preparation method thereof

Examples

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Example Embodiment

[0021] Example 1

[0022] A leather coating composition, the leather coating composition is directly used for a two-layer leather leather sofa leather, and comprises the following components by weight percentage: 20% of acrylic resin; 10% of lignocellulose; 5% of silicon dioxide; Agent 5%; Wax 8%; Foaming Agent 3%; Antioxidant 0.5%; Curing Agent 0.5%; Neutralizer 1%; Dispersant 2%; Wetting Agent 2%; Leveling Agent 2%; %; essence 0.5%; hydroxyethyl cellulose 2%; water 38%.

[0023] The leather coating composition is directly used for two-layer leather embryo sofa leather, and its preparation method is:

[0024] ①Add water to the dispersing kettle, raise the temperature to 50℃, then add bactericide, essence, leveling agent, wetting agent, dispersing agent and acrylic resin, and stir evenly;

[0025] ② Under constant stirring, slowly add lignocellulose, silicon dioxide, wax, hand feeling agent and foaming agent, and keep stirring for 60 minutes to make it evenly dispersed in th...

Example Embodiment

[0028] Example 2

[0029] A leather coating composition, which is directly used for the coating composition of two-layer leather shoe upper leather, in terms of weight percentage, comprising the following components: 25% of acrylic resin; 10% of lignocellulose; 10% of silicon dioxide; Agent 2%; Wax 12%; Foaming Agent 1%; Antioxidant 2%; Curing Agent 3%; Neutralizer 2%; Dispersant 5%; Wetting Agent 3%; Leveling Agent 1%; Defoamer 1%; bactericide 0.5%; essence 0.2%; hydroxyethyl cellulose 2%; water 20.3%.

[0030] The leather coating composition is directly used for two-layer leather embryo upper leather, and its preparation method is:

[0031] ①Add water to the dispersing kettle, raise the temperature to 55℃, then add defoamer, bactericide, essence, leveling agent, wetting agent, dispersant and acrylic resin, and stir evenly;

[0032] ② Under constant stirring, slowly add lignocellulose, silicon dioxide, wax, hand feeling agent and foaming agent, keep stirring for 90 minutes ...

Example Embodiment

[0035] Example 3

[0036] A leather coating composition, which is directly used for the first layer of leather for bags and bags, comprises the following components by weight percentage: 30% of acrylic resin; 8% of lignocellulose; 7% of silicon dioxide; and 5% of hand feeling agent; Wax 15%; Antioxidant 2%; Curing Agent 1%; Neutralizer 1%; Dispersant 2%; Wetting Agent 2%; Leveling Agent 2%; Defoamer 1%; Bactericide 1%; Fragrance 0.5 %; hydroxyethyl cellulose 0.5%; water 22%.

[0037] The leather coating composition is directly used for the case and bag leather of the first layer of poor skin, and the preparation method thereof is as follows:

[0038] ①Add water to the dispersing kettle, raise the temperature to 52℃, then add defoamer, bactericide, essence, leveling agent, wetting agent, dispersant and acrylic resin, and stir evenly;

[0039] ② Under constant stirring, slowly add lignocellulose, silicon dioxide, wax and hand feeling agent, and keep stirring for 80 minutes to ...

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Abstract

The invention belongs to the field of leather coating, and particularly discloses a leather coating composition and a preparation method thereof. The leather coating composition comprises acrylic resin, wood cellulose, silica, a feeling agent, wax, a foaming agent, an antioxidant, a curing agent, a neutralization agent, a dispersant, a wetting agent, a leveling agent, a defoaming agent, a sterilizing agent, essences, hydroxyethyl cellulose and water. The preparation method comprises the following steps: adding the components in three steps under a stirring condition, uniformly mixing the components, filtering and packaging. The leather coating composition prepared by the method disclosed by the invention is a waterborne environmentally friendly material, has good physical properties such as excellent adhesive force, fillibility, settability, covering power, air bubble forming, winding resistance and scraping resistance. The leather coating composition has high combination degree with leather fibers, and after leather is ironed and pressed by a plate, a surface formed by the coating is smooth, does not become thick, resists winding and has good settability, good breathability and good handfeel; and the leather coating composition can be directly used for coating good two-layer leather blank and bad head layer leather blank.

Description

technical field [0001] The invention belongs to the field of leather coatings, and in particular relates to a leather coating composition and a preparation method thereof which are directly used for the second layer of leather and the first layer of poor skin. Background technique [0002] Leather coatings that protect and beautify leather and prolong its lifespan. With the introduction of the concept of environmental protection, there are higher requirements for leather coatings, and there is a trend of developing from single type to compound type, from solvent type to water-soluble. Existing leather coatings are generally divided into three categories: bottom finish, middle finish and top finish. The three finishes have different performance requirements for the finish. The bottom finish is the basis of the entire coating. During the leather finishing process , the quality of its performance has a particularly heavy impact on the performance of leather. [0003] The exis...

Claims

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Application Information

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IPC IPC(8): C09D133/00C09D197/02C09D123/30C09D101/26C09D7/12C09D5/14C14C11/00D06M15/263D06M15/05D06M11/79D06M15/227D06M15/09D06M13/262D06M13/148D06M15/643
Inventor 高峰
Owner 高峰
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